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gladu [14]
3 years ago
6

Urgent!!! PLEASE HELP, FAST!!!

Mathematics
1 answer:
gayaneshka [121]3 years ago
6 0
The best way to solve this is to put it into a proportion:
\frac{x}{84} = \frac{ \frac{1}{4} }{ \frac{3}{4} }
So you cross multiply to get:
21= \frac{3}{4} x (the 21 is from \frac{1}{4}•84)
Then multiply by \frac{4}{3}
And you get $28, so the reduced price would be $28.
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